diff --git a/sql/spread.pg.sql b/sql/spread.pg.sql
index 5a470f0..0c6105e 100644
--- a/sql/spread.pg.sql
+++ b/sql/spread.pg.sql
@@ -1,18 +1,68 @@
+DROP FUNCTION IF EXISTS rlarp.get_premium;
+CREATE OR REPLACE FUNCTION rlarp.get_premium(_mold text, _season int, _chan text, _relevant text, _quoted text)
+RETURNS jsonb 
+LANGUAGE plpgsql AS
+--DO
+$func$
+BEGIN
+
+DECLARE
+    _factor jsonb;
+
 WITH
 --targte spreads--
-ts AS (
+bridge AS (
     SELECT 
+        -- 'FHR14000'     mold
+        --,2024           season
+        --,'DIRECT'       chan
+        --,'v1:B..SLV..'  relevant
+        --,'v1:S..SLV..'  quoted  
+         _mold          mold
+        ,_season        season
+        ,_chan          chan
+        ,_relevant      relevant
+        ,_quoted        quoted  
+)
+,ts AS (
+   SELECT 
         t.*
         --, round(target_price/min(target_price) over (partition by mold, chan, season),5) spread 
-        , target_price/min(target_price) over (partition by mold, chan, season) spread 
+        ,t.target_price/min(t.target_price) over (partition by t.mold, t.chan, t.season) spread 
+        ,b.quoted
+        ,b.relevant
+        ,CASE t.data_segment WHEN b.quoted THEN 'get to here' WHEN b.relevant THEN 'from here' END flag
     FROM
         pricequote.market_setavgprice t
-    WHERE 
-        mold = 'FHR14000' 
-        and season = 2024 
-        and chan = 'DIRECT' 
-        and data_segment like 'v1%' 
+        INNER JOIN bridge b ON
+                t.mold =   b.mold
+            and t.season = b.season
+            and t.chan =   b.chan
+            and t.data_segment like 'v1%' 
+            and t.geo             = 'ALL'
+            and t.country         = 'ALL'
+            and t.geo             = 'ALL'
     ORDER BY 
         target_price ASC
 )
-SELECT mold, chan, season, data_segment, spread, max(spread) over (), min(spread) OVER () spread FROM ts WHERE data_segment IN ('v1:B..SLV..','v1:S..SLV..')
+--SELECT * FROM ts
+SELECT 
+    --mold
+    --,chan
+    --,season
+    --,ROUND(max(spread) FILTER (WHERE flag = 'get to here'),5)  quote
+    --,ROUND(max(spread) FILTER (WHERE flag = 'from here')  ,5)  relevant
+    jsonb_build_object('bridgePremium',ROUND(max(spread) FILTER (WHERE flag = 'get to here')  
+    /max(spread) FILTER (WHERE flag = 'from here')        ,5))
+INTO
+    _factor
+FROM 
+    ts 
+GROUP BY 
+    mold
+    ,chan
+    ,season;
+
+RETURN _factor;
+END
+$func$